Citazione Stile APA (7a Edizione)

LEECH, G. (2007). A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. Pearson.

Citazione stile Chigago Style (17a edizione)

LEECH, G. A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. New Delhi: Pearson, 2007.

Citatione MLA (9a ed.)

LEECH, G. A COMMUNICATIVE GRAMMAR OF ENGLISH, 3RD ED. Pearson, 2007.